8th grade math help please! Use the diagram that I attached below to complete this sentence:
Angle 8 and angle _ are adjacent to one another.

Also it would help me a lot if you explain why angle _ is the correct answer!

Pentagon abcde is dilated according to the rule do,3(x, y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)